The body was in the stove. As the temperature rose rapidly, the body suddenly raised, and cried out in its mouth, and then fell down. After cremation, the body turned into a small residue. Where did the gene (DNA fragment) go? The truth is beyond our imagination.
First understand the changes in the body after a person dies.
When a person dies, his breathing and heartbeat stops, and blood circulation also stops. With the changes in time, the main manifestations of the corpse are as follows:
1. When he just died, his pupils spread, his eyes were slightly open, and his mouth was slightly open. Some people may have incontinence, and even some men's semen leaked because the muscle control power of the corpse disappeared.
2. The temperature of the corpse begins to drop, and the corpse will no longer generate heat. This is corpse cold .
3. Within 10 minutes, corpse stagnation occurs, muscles all over the body begin to stiffen, and joints of the corpse have been fixed, such as the mouth cannot be opened and the limbs cannot be bent.
4. In 1 to 3 hours, corpse spots appear on the corpse and the blood no longer circulates. Under the action of gravity, the blood will penetrate to the lower surface of the corpse. The color of the corpse spots is usually dark red to dark purple-red. When it first occurred, it was cloudy, and then it developed into stripes and finally sheets.
5, 5 to 6 hours, the cornea is cloudy. If you sign a corneal donor, you must extract the cornea before the turbidity occurs, otherwise the cornea will be necrotic and there will be no use.
6. The surface of the skin is dry and hard. Because the blood does not provide nutrition, the moisture on the surface of the skin will evaporate, appearing a waxy, yellowish brown or dark brown.
7. The corpse begins to self-dissolve, and the corpse becomes softer from hardness. The cells contain various enzymes, such as proteolytic enzymes, which will make proteolytic . This phenomenon is autolysis .
The first autolysis of pancreatic , which will also occur even in the frozen state, and the gastrointestinal tract and gallbladder are also early.
8. The anaerobic microorganisms in the corpse reproduce rapidly, and an early corrupt process occurred.
If the mortal is stuck for too long, the abdomen of the corpse will produce a large amount of gas due to microorganisms . If the mouth, nose, ears, anus and the woman's private parts are not blocked in time, the liquid produced by the corpse will flow out.
In the countryside, someone died. Please ask the Feng Shui master to watch the good days of the funeral, but if the corpse has been stuck for a long time and the weather is hot, the corpse will dissolve faster. If the corpse liquid is not blocked, it will be difficult to seal the gas.
Therefore, in order to make the dead look more decent and to prevent these harmful liquids and corpse odor from spreading everywhere, several holes in the corpse must be blocked.
Why do you need to block these corpses?
Many people believe that after a person dies, incontinence will occur, so these holes are blocked.
In fact, when a person dies, urination and defecation occur in time, and it is not time to plug the yarn cotton, and this will not happen in time, usually only on the second or third day.
In ancient times, this method was used to block several holes in corpses. In ancient times, jade artifacts were used.
When the concubine dies, use the "Nine Orifices Jade Yin Plug" to block the nine holes.
Nine orifices Jade is the nine jade artifacts that block or cover the body of the deceased: 2 eye plugs, 2 nose plugs, 2 ear plugs, 1 mouth plug, 1 anal plug, 1 genital plug, and there is a difference between men and women.
Why use jade to block several holes in the corpse? If these "holes" in the corpse are not blocked, liquid inside the corpse will flow out.
The ancients were very smart. They found that jade blocked corpses, and modern people used cotton or gauze to block several holes in the corpse.
The operation of modern society is generally in the following occasions.
1. If a hospital dies, especially a serious illness, an experienced doctor asks the nurse to use cotton or gauze to block several holes and then push it to the morgue.
2. When those who died at home put on a shroud on the deceased, experienced grooming personnel used cotton to block several holes in the human body.
3. In the funeral home. The grooming staff at the funeral home saw that several holes in the body were not blocked and used cotton to block the holes.
Nowadays people are basically transported to the crematorium for cremation after death, the process is as follows.
1. The family holds the death certificate , and then contacts the funeral home to complete the cremation procedures in time.
When completing the cremation procedures, a death certificate must be issued before the funeral home can accept the cremation business.
In the funeral home, the body must go through three basic processes: burial, mourning and cremation.
burial means to cure the body and let the body leave with the best face.
2. The family members of the deceased prepare the required documents for cremation.
(1), the deceased's ID card.
(2), the ID card of the person in charge.
(3), household registration book, marriage certificate and other relationship certificates.
(4), death certificate.
has three connections, 1 joint cancellation of the account, 2 joint family members retained, and 3 joint cremation is handled.
On the day of cremation, the required documents must be brought with you, accompanied by the funeral home service staff throughout the process. Usually, you will remind you that you can consult any questions at any time. After the burial was completed, the family mourned the deceased and saw the last side of the deceased.
Then enter the cremation process, and the process of cremation of the remains is as follows.
Pack the body into a disposable packaging box or bag.
pack box or bag is cremated with the body.
The furnace for cremating corpses is divided into ordinary cremation furnace and green cremation furnace according to the technological content.
After pushing the corpse forward, the second step of cremation of the corpse is started.
When the corpse is cremated, first put the corpse on the conveyor belt and press the transmission button. The corpse is sent into the furnace with the conveyor belt, and the furnace door will automatically close.
There is an burner in the crematorium. Use diesel spray fire for burning. The blower blows in to ensure that oxygen is sufficient, and then burns fully. There is a pump below to extract the burning smoke and dust and discharge it into nature through the chimney. If the crematorium is more advanced, there is basically no smoke and dust.
Then the moisture in the corpse continues to evaporate under the action of high temperature, and the corpse may make some "cry". This is not a ghost saying, but a large amount of gas running around inside the corpse, and the sound made when passing through organs such as the mouth, nose, lungs, etc.
Then the burning of skin fat, the corpse will "move", because the corpse's muscle tissue will be burned to death if it loses the protection of skin fat.
But during this cremation process, since the strength of the corpse curved muscle is significantly higher than that of the extensor muscle, under the action of high temperature, the muscles of the extensor muscles are burned faster than those of the convex muscles. For example, the muscles of the extensor muscles are the first to be burned. At this moment, under the force of the arm, they are provided by the muscles of the convex muscles.
At this time, the cremated corpse will have a "retracting reaction", such as the bend of the palms of the feet and the bend of the front and back of the arms, etc., but the "corpse sits up" still has some deliberately exaggerated elements!
The body is incinerated at high temperature, and the organic matter in the human tissues is incinerated, such as fat, protein, water and other organic matter. What is left is that the bones of the human body are inorganic substances, and their main components are calcium, phosphorus, etc.
Finally, some human-shaped ashes and broken bones will be left on the table.
Such as larger bones such as thigh bones and skulls.
Of course, these skulls are scattered into pieces and are no longer in the shape of human heads.
As for the "corpse oil" mentioned by some netizens, it does not exist at all.
funeral home staff and other incinerator cooled down, put on disposable sanitary gloves, hooked the ashes manually, then moved the bones out, then used equipment to mash and grind them, then packed them with a small dustpan, poured them into the urn, and handed them to the deceased's family.
According to professional information, after adult cremation, the weight of the ashes is about 2 catties to 8 catties, and the average is about 5 catties.
The average weight of ashes for men is 5.5 catties, while the average weight of ashes for women is about 3.5 catties.
According to this calculation, after cremation, the ashes are equivalent to about 3%-4.5% of their body weight.
For example, an old man’s normal weight in his lifetime is 120 kilograms. Due to years of illness, his weight is less than 70 kilograms. What he loses is his muscles and his bones will not decrease.
After the corpse enters the stove, it begins to cremate. It is cremated at a high temperature of more than 900 degrees. All the muscles are burned out, and the inorganic substances in the bones are burned out, leaving only some bone slags, which are about 5 kilograms and can be placed in the urn.
After the family got the urn, they took the urn to the cemetery for burial.
If there is no place to be buried yet, the family can temporarily store the urn in the funeral home, which can usually be temporarily stored for three years, but the family must go through the relevant temporary storage procedures and sign a contract.
or above is the cremation process. It seems relatively simple, but at the cremation site, it is more frightening to look at it. If the family is close and witness the cremation site, it will not be able to bear it. Therefore, it makes sense for the cremation site to ask the family to wait outside.
people were cremated and they were piled up ashes.
The substances that make up our human body are divided into organic matter and inorganic matter.
Organic substances are in our human tissues, that is, fat, water, protein, etc. Inorganic substances are bones composed of calcium and phosphorus elements, including teeth.
If it is an adult man of 60 kilograms, the water content in the body generally accounts for about 60% of his body weight, and protein, fat and inorganic salts account for about 18%, 15% and 2% respectively.
At the high temperature of 1000 degrees Celsius in the incinerator, these organic matter turned into carbon, hydrogen, oxygen element , and then passed through the exhaust gas pipeline of the incinerator and returned to nature.
bones are inorganic substances, which are left behind because they are not easy to burn. Usually, the weight of the ashes of the deceased who weigh 60 kilograms is usually about 3 kilograms, and the overall shape is grayish white and gravel, rather than the white fine powder in TV and movie works.
Then we understand the meaning of genes.
In life, we know genetically modified soybean , DNA paternity test , cells and other things, but we don’t know the difference and the real meaning between them.
When we were in school, we learned that the human body is composed of many cells, and cells are composed of nucleus and cellular substances.
chromosome is in the nucleus, and chromosomes are composed of proteins and DNA. The Chinese version of DNA molecule is deoxyribonucleotides, which are represented by A, T, C, and G respectively.
So what exactly is the gene?
There are many kinds of DNA in our human body, and not all DNA can be " genetic information ". Most DNA has very little information, and only a small number of DNA can have genetic characteristics DNA fragments, which we collectively call.
To give a common example, we plant cucumber seeds in the soil, and then the seeds germinate and grow, and they will grow fruits when they grow. The fruit is cucumber, why don’t watermelon grow?
This is the genetic inheritance of biology . Whatever seeds are planted will harvest the corresponding fruit and will not become other fruits.
Therefore, a gene is a fragment of DNA, which is a special substance that can be inherited in the cell. Therefore, nature can rely on genes to pass it to its offspring.
Before the cell divides, its internal chromosomes will divide early. The chromosome is the division of DNA, and a gene is a fragment of DNA that has inheritance.
Take cucumber as an example. When cucumber grows, the gene will give instructions to the cells and then divide them. For example, the shape, color, taste of the cucumber, etc. are all determined by genes.
Therefore, genes are the core of cells, and different organisms and genes are also different.
For example, our human genetic inheritance.
During the reproductive process, germ cells produce J daughter cells and egg cells through meiosis. J daughter cells contain the father's genetic information, and egg cells contain the mother's genetic information.
These mainly refer to the genetic information in the cell nucleus. When the J daughter cells enter the egg cell, they eventually form a fertilized egg, which forms a new whole composed of the genetic material of the father and mother. These fertilized eggs will slowly differentiate and become embryos. Because the embryo receives the respective genetic information materials of the parents, the biological child looks very similar to the parents.
The specific difference is that cell > nucleus > chromosome > NDA (deoxyribonucleotide) > gene (DNA fragment with hereditary properties).
people were cremated and they were piled up ashes.
The substances that make up our human body can be divided into organic matter and inorganic matter.
Organic substances in our human tissues are fat, water, protein, etc., and inorganic substances are bones composed of calcium and phosphorus elements, including teeth.
If it is an adult man of 60 kilograms, the water content in his body usually accounts for about 60% of his body weight, and protein, fat and inorganic salts account for about 18%, 15% and 2% respectively.
At the high temperature of 1000 degrees Celsius in the incinerator, these organic matter turned into carbon, hydrogen, and oxygen elements, and then passed through the exhaust gas pipeline of the incinerator and returned to nature.
. These bones are inorganic substances. Because they are not easy to burn, they are left behind. Generally, the weight of the ashes of deceased people weighing 60 kilograms is usually about 3 kilograms, and the overall weight is grayish white, in the shape of gravel, rather than the white fine powder in TV and movie works.
So where did the human gene go after cremation?
gene is a DNA fragment with genetic characteristics, and DNA is the main substance that makes up chromosomes. The chromosome is in the nucleus of the cell, and the nucleus is the main substance that makes up the cell. Therefore, the gene is ultimately a part of the cell.
When these organic matter in human cells are converted into carbon, hydrogen, and oxygen elements under the action of high temperature, they will return to nature, so the gene turns into a wisp of blue smoke and return to nature.
Give a vivid metaphor. When we burn the paper with words and then crush it to ashes, where did these fonts go? These fonts continue to exist in another way, but they are unrecognizable, and genes are just like the fonts here.
In the TV series, we saw that there were people using ashes for DNA identification. This is the plot of " Daylight Fireworks " starring Liao Fan .
However, in real life, there are no reports on the use of ashes for DNA identification.
Because ashes are organic matter in the human body, they have been burned out, and the remaining ingredients are inorganic matter, so there is no DNA component, so ashes cannot be used for DNA identification.
Of course, if it is not completely burned during cremation and there are still remaining bones, that's another matter, because bones can be used for DNA identification, so that the identity information of the deceased can be known .
DNA identification samples are usually organic matter such as blood, blood marks, oral mucosal cells, and other samples, such as hair follicles, fetal amniotic fluid during pregnancy, and placental villi. The human body's semen, sperm, muscles, teeth, nails, bones and other organic matter.
For example, the news I saw online is some plots of "extracting DNA after incineration".
This method is usually used to solve cases, such as a victim being burned by the murderer, but because the flame is not high, the victim's body is not completely burned. Some special scientific methods can be used to extract extremely small amounts of DNA from the bones, but these are only used to confirm the identity information of the deceased, and are completely different from the genes extracted by the body after cremation in the funeral home.
The ashes after incineration are all these inorganic substances, and the cells are organic substances, so the deceased's genes have long disappeared.
is written to the end.
or above is my sharing. Thank you for reading and for following!
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image from the network
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